In BlueSpice it is possible to create subcategories and you can display the category system as a category tree.
Top level and subcategories
Example of a category tree:
Get to know more about how to create a multilevel system of categories.
See all categories in the hierarchical category tree. You start with the category "top level" and it is possible to fold out subcategories.
In the general category tree it is possible to jump to a category and display all subcategories. And you will see all related articles of a category.
Define top level categories
Define the most important categories as a top level subcategory. Just insert a new subcategory on the top level category page. Or insert the category "top level" at the new category site. For example insert category "top level" at
Insert category tree
Insert the following code:
In the middle there is the category from which the category tree shall start. In this case it is top level.
Special page category tree
Beside the category tree there is a special page named Special:CategoryTree. Here you can see all top level and subcategories.